Results 91 to 100 of about 3,255,424 (314)

Study on the Influence of Pulse Current Cathodic Protection Parameters of Oil Well Casing

open access: yesAdvances in Materials Science and Engineering, 2019
Pulse current cathodic protection had obvious advantages over traditional DC cathodic protection, but when square-wave pulse current was used for cathodic protection of oil well casing, the influence of pulse protection parameters on potential ...
Xiang-qian Xu, Hao-bin Zhou
doaj   +1 more source

Perancangan Rele Arus Lebih Dengan Karakteristik Invers Berbasis Mikrokontroler Atmega 8535

open access: yesJurnal Nasional Teknik Elektro, 2012
Untuk melindungi peralatan listrik dari kerusakan akibat gangguan hubung singkat atau short circuit  penyebab masalah yang harus diaman diperlukan suatu alat pengaman arus lebih (over current protection atau over current relay (OCR)).
Cahayahati ., Mirza Zoni Zoni
doaj   +1 more source

High Speed Operation of Fuel Injectors with Over Current Protection

open access: yesThe Transactions of The Korean Institute of Electrical Engineers, 2011
High speed drive method for a fuel injector cleaner with current control is presented in this paper. The fuel injector cleaner is used for cleaning the fuel injectors in vehicles when it is clogged with deposit and rust. The fuel injector cleaner cleans the fuel injector by turning on and off the fuel injector rapidly.
Hyong-Yeol Yang, Eui-Suk Suh
openaire   +2 more sources

Dual PI3K/AKT and CDK4/6 inhibition reveals selective sensitivity in an SHH medulloblastoma stem cell model

open access: yesMolecular Oncology, EarlyView.
Targeted therapy was evaluated in SHH medulloblastoma using neuroepithelial stem cell (NES) and tumor‐derived NES‐like (tNES) models in 2D monolayers and 3D spheroids. PI3K, AKT, and CDK4/6 inhibitors had minimal effects in NES but markedly reduced viability and growth and induced apoptosis in tNES cells, revealing distinct therapeutic vulnerabilities.
Monika Lukoseviciute   +4 more
wiley   +1 more source

International Share Ownership, Profit Shifting and Protectionism. [PDF]

open access: yes
In this paper, I examine the implications of increasing globalisation of stock market ownership on the economics of protection. Current data on European, Japanese and Australian stock exchanges indicate that in most cases over 30 per cent of the stock ...
T.Huw Edwards
core  

On the development of a mercury-free ternary aluminium anode for cathodic protection [PDF]

open access: yes, 1987
The development of a new mercury-free ternary aluminum anode (CIFTAL) for cathodic protection of marine structures is described. The new anode demonstrated a current efficiency of 83.5% to 85.4% in a current density range of 5.6 to 166.7 mAdmˉ².
Gopalakrishna Pillai, A.G.   +1 more
core  

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

open access: yesMolecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni   +11 more
wiley   +1 more source

A New GPS-based Digital Protection System for Smart Grids in Loop Structure

open access: yesEAI Endorsed Transactions on Energy Web, 2014
This paper presents a new digital protection system to solve the protection challenges in future smart grids, i.e., fast protection and fault isolation in a loop-structured system with limited magnitude of fault current.
X. Liu, M. Steurer, M. Yu
doaj   +1 more source

Investigating Phase Over-Current (OC) Protection in Medium-Voltage networks

open access: yesEuropean Journal of Engineering and Technology Research, 2019
Overcurrent protection is protection against excessive currents or current beyond the acceptable current rating of equipment. It generally operates instantly. Short circuit is a type of overcurrent. Magnetic circuit breakers, fuses and overcurrent relays are commonly used to provide overcurrent protection.
openaire   +1 more source

Protection strategy for multi-terminal DC networks with fault current blocking capability of converters [PDF]

open access: yes, 2017
High voltage dc networks are a promising technology to flexibly transmit power over long distances. However, dc grid protection is still a major challenge. DC fault clearance can be mainly achieved with three devices. These are ac circuit breakers (ACCBs)
Adamczyk, A.   +5 more
core   +1 more source

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